简述液力耦合器的工作原理？
参考答案：
运转时，液耦泵轮中充满工作油，主动轴带动泵轮旋转时，工作油在离心力作用下，形成高压高速油流冲入涡轮进口，推动涡轮，使涡轮与泵轮同向旋转，油在涡轮中减压减速后，又冲入泵轮进口径向流道，重新在泵轮中获取能量。如此周而复始，构成工作油在泵轮和涡轮两者间自然环流，在这种循环中，泵轮将输入的机械功转为工作油的动能和升高压力势能。而涡轮将工作油的两种能转化为输出的机械功，实现电机和泵之间的动力传输。
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| One day a famous speaker gave a speech to a crowd of people. He held up a 20-dollar bill. He asked, "Who would like this $20 bill" Hands were raised. Then he said,"I am going to give this $20 to one of you, but first let me do this." He began to crumple (弄皱) the 1 . He then asked the audience (观众), "Anybody still wants it?" Still the hands went 2 in the air. "What if I do this?" He asked, and he 3 it on the ground, and started to step on it. He 4 it up. Now the bill was 5 and crumpled. "Now who still wants it?" Still the hands went up. "My friends," He continued, "You have all learned a good lesson. No matter 6 I did to the money, you still wanted it because the bill did not lose its 7 . It was still worth $20. Many times in our 8 , we are dropped, crumpled, and stepped on, because we sometimes 9 wrong decisions, or we may 10 with something we do not 11 . When that happens, we feel depressed and think we are 12 . But in fact no matter what has happened or what will happen, you will never lose your value. The worth of our life comes not 13 what we do or whom we know, but in who we are! Don't forget 'the worth of a thing does not depend on its outside 14 , but on its inner value.' This is the 15 of life. | ||||
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